发明名称 Hochreaktives Bariumcarbonat
摘要 The invention relates to a micronized barium carbonate, which is produced by adding an agent that impedes crystal growth, to a method for the production thereof, and to its use. Due to its extremely high reactivity, the produced micronized barium carbonate having a BET surface of at least 32 m<2>/g is suited, in particular, for producing capacitors, thermistors and other oxide ceramic electrical components, which contain calcium oxide, barium oxide or strontium oxide, as well as for producing high-temperature superconductors. Ammonium salts or alkylammonium salts of carboxylic acids, which comprise a total of 3 to 12 C atoms as well as at least two COOH groups or at least 2 OH groups, e.g. salts of maleic acid or of citric acid are used as the agent that impedes crystal growth.
申请公布号 DE19964060(A1) 申请公布日期 2001.07.05
申请号 DE19991064060 申请日期 1999.12.30
申请人 SOLVAY BARIUM STRONTIUM GMBH 发明人 KOEHLER, KARL;PARK, JAI WON;HARDINGHAUS, FERDINAND;KUEHN, ULRICH;BIASCI, LUCA
分类号 C01F11/18;H01C7/02;H01C7/04;H01G4/12;(IPC1-7):C01F11/18;H01L39/12;H01B3/12 主分类号 C01F11/18
代理机构 代理人
主权项
地址